λ/40 Aspheric Lenses
λ/40 Laser Grade Aspheric Lenses
355nm
532nm
1064nm
/40 Laser Grade Aspheric Lenses
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Design Wavelength (nm): 587,6
Clear Aperture (%): 90
Diameter Tolerance (mm): +0,00/-0,025
Center Thickness Tolerance (mm): ±0,1
Asphere Figure Error (RMS): λ/40
Surface Quality: 40-20
Centering (arcmin): <1
• l/40 RMS Asphere Figure Error
• High Numerical Aperture Designs
• 3D Surface Profile Included with Each Lens
TECHSPEC® λ/40 Aspheric Lenses guarantee better
than λ/40 wave aspheric figure error. Achieved
via precision magneto-rheological finishing (MRF),
these aspheres offer high numerical apertures with
diameters ranging from 15 to 50 mm and are ideal for
a variety of imaging and low light level applications.
Each TECHSPEC® λ/40 Aspheric Lens is individually
measured and a 3D surface profile is included.
TECHSPEC® λ/40 Aspheric Lenses
Dia. (mm) EFL (mm) Numerical
Aperture BFL (mm) CT (mm) ET (mm) Glass Type Stock No.
Price
1-10 11-49 50+
15,0 15,00 0,50 10,22 8,62 6,21 N-SF6 #12-428 €495,00 €396,00
Call For OEM Quantity Pricing
15,0 18,75 0,40 14,32 8,00 6,10 N-SF6 #12-429 €495,00 €396,00
15,0 22,50 0,33 16,71 8,79 6,25 N-BK7 #12-430 €495,00 €396,00
25,0 37,50 0,33 31,09 9,72 5,49 N-BK7 #12-438 €595,00 €476,00
25,0 50,00 0,25 45,23 7,24 4,14 N-BK7 #12-439 €595,00 €476,00
40,0 40,00 0,50 31,21 14,70 6,83 N-SF5 #12-445 €750,00 €600,00
50,0 50,00 0,50 42,77 13,06 4,82 N-SF6 #12-448 €850,00 €680,00
• 1/40 Wave Aspheric Surface Figure Error (RMS)
• Strehl Ratio >0,8
• Laser Line V-Coats with <0,25% Reflection
TECHSPEC® λ/40 Aspheric Lenses are polished
through precision magnetorheological finishing
(MRF), providing them with an ultra-smooth aspheric
surface with an aspheric surface figure error of λ/40
RMS. The resultant aspheric lenses feature a Strehl
Ratio above 0,8, guaranteeing diffraction-limited
performance at the specified design wavelength.
TECHSPEC® λ/40 Aspheric Lenses are coated with
a high-performance Laser Line V-Coat to minimize
reflection when used at their Nd:YAG design wavelengths.
Standard imperial sizes with f/2 designs
made from fused silica are ideal for integration into
OEM applications.
R (%)
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
Material: Corning 7980 Grade 0F Fused Silica
Asphere Figure Error (RMS): λ/40
Clear Aperture (mm): Diameter - 2,0
Surface Quality: 10-5
Center Thickness Tolerance (mm): ±0,1
Diameter Tolerance (mm): +0,00/-0,05
Centering (arcmin): <1
Coating: Rabs <0,25% @ DWL
Damage Threshold (J/cm2): 355 nm: 7,5 @ 20 ns, 20 Hz
532 nm: 10 @ 20 ns, 20 Hz
1064 nm:
15 @ 20 ns, 20 Hz
0.2
0
250 350 450 550 650 750 850 950 1050 1150
(nm)
TECHSPEC® λ/40 Laser Grade Aspheric Lenses
Dia. (mm) EFL (mm) Numerical
Aperture BFL (mm)
Design
Wavelength
(nm)
CT (mm) ET (mm) Strehl Ratio Stock No. Price
25,4 50,8 0,25 45,39 355 7,98 4,54 >0,8, by design #39-556 €650,00
25,4 50,8 0,25 45,36 532 7,90 4,40 >0,8, tested #39-558 €750,00
25,4 50,8 0,25 45,03 1064 8,40 4,70 >0,8, tested #39-560 €750,00
50,8 101,6 0,25 97,96 355 10,98 4,11 >0,8, by design #39-563 €850,00
50,8 101,6 0,25 93,95 532 11,20 4,10 >0,8, tested #39-565 €995,00
50,8 101,6 0,25 94,70 1064 10,00 2,69 >0,8, tested #39-567 €995,00
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